Grav before 2.0.15 contains an arbitrary file write vulnerability in the Blueprint dynamic-data bare-function validation that uses an incomplete denylist instead of a positive allowlist. Attackers with page-edit or blueprint-config access can invoke the error_log function through a data directive to append PHP payloads to web-accessible files, achieving remote code execution.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 18 Aug 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Grav before 2.0.15 contains an arbitrary file write vulnerability in the Blueprint dynamic-data bare-function validation that uses an incomplete denylist instead of a positive allowlist. Attackers with page-edit or blueprint-config access can invoke the error_log function through a data directive to append PHP payloads to web-accessible files, achieving remote code execution. | |
| Title | Grav before 2.0.15 Arbitrary File Write via error_log | |
| First Time appeared |
Getgrav
Getgrav grav |
|
| Weaknesses | CWE-94 | |
| CPEs | cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Getgrav
Getgrav grav |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-18T11:19:40.317Z
Reserved: 2026-08-18T10:57:39.580Z
Link: CVE-2026-75827
No data.
Status : Received
Published: 2026-08-18T12:19:32.553
Modified: 2026-08-18T12:19:32.553
Link: CVE-2026-75827
No data.
OpenCVE Enrichment
Updated: 2026-08-18T12:30:04Z
Weaknesses